Process for joining up electric and other wires.



J. H. VAN VIERSEN.

PROCESS EoR JolNlNG UP ELECTRIC AND OTHER WIRES.

APPLICATION FILED SEPT. I1, I9I7.

Patented Mar. 18, w19.

FIG.2.

FIG.|.

t mir En sfrATns PATENT orrion.

J' ACOB HENDRIK VAN VIERSEN', 0F THE HAGUE,'NETHERLANDS.

vspecification of Letters rvant. Patented Mal, 18, 1919,

Application led September` 11, 1917. Serial Nb. 190,821.

ments in a process and means for joiningk electric and other wires.

Heretofore junctions in electric lines for connecting or branching oft'same by means of SO-called junction boxes are generally obtained asfollows:

The` ends of the wires are stripped over a certain length' of theirinsulation, twisted together with a pair of tongs and connected by meansof a solderingflamp and a rod of tin solder after which the junction iscovered by or wound with an insulating mate-- rial. This method ofproceeding answers moderate requirements but possesses the drawbacksthat it requires a great deal of dexterity from the workman forproducing a correct junction and that even then ity lends to animportant waste of solder, the hardly Iavoidable singe of the wireinsulation and the gradual destruction of the latter by the solderinliquid or grease.

The o ject of the present invention is to provide a process for makingsuchjunctions whereby the different drawbacks mentioned a'bove arewholly avoided and which possesses moreover the advantage of effectingan important saving of time.

The invention is explained by the accompanying drawing which representsa three wire junction in longitudinal section and in different phases ofthe process. In the drawing- Figure 1 shows stripped wire endsintroduced into an inner tube and twisted together; a tube cap filledwith paste being shown above it.

Fig. 2 shows the tube cap passed over the inner 'tube yand the pastedelivered latter. v

Fig. 3 shows the completed junction with an insulating cap assed over itand fixed by means of a har suing-material which is sticky in hotcondition.

According to the invention the junction is obtained by means of a smallmetal junction tube closed at one end and being provided with holes theninnber and diameter of which correspond with those of the Wires to beconnected. Y In use the wire ends are stripped of their insulation andpassed through these holes and twisted together within the tubeby meansof a pair of tongs, the superfluous ends being at the same time cut 0H.A fitting cover closed at one end isfthen assed over the tube this coverbeing ffilled with soldering paste which is consequently delivered tothe tube. The totally closed tube is then heated, preferably by asoldering iron especially adapted for this purpose and which isdescribed in the specification of a concurrent application, until thesolder flows, which fact may be observed through a narrow opening formedin the tube cover. The junction itself is-then completed and may beinsulated in any ordinary manner. The insulation described in thefollowing is, however, the preferred one.

The solder having been 1n a flowing condition, the tube is covered,while still being hot, with a sticky insulation material, lfor examplewith the material generally used Iand known as Chatterton compound; thewhole isl covered with an insu-lation cap of fiber, porcelain, or thelike-.J It is clear that this insulation cap is' not necessary forrealizing the process but its applicatlon constitutes a very usefulextension of same. The application of the metal tube cap is neitherstrictly necessary for obtaining the advantages of the process. Thesoldering paste may also be introduced into the tube in another mannerand then made to flow. Wasting solder and damaging the wire insulationare even then equally well avoided. l

Having now particularly described and vascertained the nature of my saidinvention and in what manner the same is to bey pere` formed, I declarethat what I claim is:

1. A process for joining up wires which junction tube (twisting thewires together to secure them in the tube), solderin the wires andinsulating the whole in an e cient manner, substantially as described.

. cap over the junction tube and 3. A process for joining up wires,which consists in passing the wire ends through holes pro-vided in thebottom of a metal junction tube, twisting them together, cutting them tolength, soldering them by means of vsoldering paste and insulating thewhole in an efiicient'manner, substantially as described.

el. A process for joining up wires by means of a junction tube providedwith holes in its bottom through which the wire ends are passed, wherebythe soldering paste is introduced into the junction tube by means of atube cap closed at one end and fitting on the junction tube, said capbeing soldered together with the Wires and the tubes, substantially asdescribed.

5. A process for joining up wires, whichl the wire ends through'consists in passin holes provided in t e bottom of a Ametal junctiontube, twisting said wire ends together, cutting them to length,soldering themfwith a soldering paste introduced into the junctiontubeby means of a metal tube cap littingpn the tube and passing aninsulation l the cap, substantially as described.

6.( A process for joining up wires, which consists in passing the wireends throughl holes provided in the bottom of a metal junction tube,twisting said wire ends together, cutting them to length, soldering.them with a soldering paste introduced into the junction tube by meansof a metal tube cap fitting on the tube, covering the whole While stillbeing hot with a thin layer 0i" a hardening material which is stick-.yin hot condition and passlng an insulation cap ever aaeaeia the junctiontube and cap, substantially as described.

7. A process for joining up metal wires, which consists in passing thewire ends through. holes provided in the bottom of a metal junctiontube, twisting said wire ends together to secure them in the tube,cutting them to length and. soldering them with `a soldering pastecontained in the junction tube and brought to a iiowing condition.

8. A process for joining wires which consists in passing the wire endsthrough holes provided in the bottom of ametal junction tube open at oneend, introducing soldering material into said tube, and melting thesoldering material by heating the tube.

9. A process for joining wires which consists in passing the wire endsthrough holes provided in the bottom of a metal junction tube having anopen end, placing a tube cap containing soldering material over the openend of the junction tube, and applying heat to the tubes to melt thesolder and unite the wires, tube and cap.

10. A process for joining wires which consists in passing the wire endsthrough holes provided in the bottom of a metal junction tube,introducing soldering material into this tube and melting it by heatingthe tube, covering the whole while still hot with a thin layer ofhardening material which is sticky in hot condition, and passing aninsulating cap over the junction tube.

In testimony whereof l aiix my signature in presence oit one witness.

JACB HENDRK VAN VIERSEN. litness:

PLANTE FBRUE.

